FR1022443A - Improvement in reversible pick-up heads - Google Patents

Improvement in reversible pick-up heads

Info

Publication number
FR1022443A
FR1022443A FR1022443DA FR1022443A FR 1022443 A FR1022443 A FR 1022443A FR 1022443D A FR1022443D A FR 1022443DA FR 1022443 A FR1022443 A FR 1022443A
Authority
FR
France
Prior art keywords
heads
improvement
reversible
pick
reversible pick
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PATHE MARCONI IND MUSIC
Original Assignee
PATHE MARCONI IND MUSIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PATHE MARCONI IND MUSIC filed Critical PATHE MARCONI IND MUSIC
Application granted granted Critical
Publication of FR1022443A publication Critical patent/FR1022443A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/06—Gramophone pick-ups using a stylus; Recorders using a stylus comprising two or more styli or transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR1022443D 1950-07-24 1950-07-24 Improvement in reversible pick-up heads Expired FR1022443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1022443T 1950-07-24

Publications (1)

Publication Number Publication Date
FR1022443A true FR1022443A (en) 1953-03-04

Family

ID=9577627

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1022443D Expired FR1022443A (en) 1950-07-24 1950-07-24 Improvement in reversible pick-up heads

Country Status (3)

Country Link
BE (1) BE504207A (en)
CH (1) CH294052A (en)
FR (1) FR1022443A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977124A (en) * 1955-01-04 1961-03-28 Staar Marcel Jules Helene Phonograph apparatus

Also Published As

Publication number Publication date
CH294052A (en) 1953-10-31
BE504207A (en)

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